Uncanny X-Men rulebook page 17
If two cards directly conflict, the one that says you can't beats the one that says you can.
Cerebro - Supercomputer
Place Cerebro on a character card. It remains there until you or a card effect removes it (it is still in the field). Your opponent's dice from that card cost a minimum of 2 energy to field. This cost can't be reduced
Nick Fury - Mr. Anger
While Nick Fury is active, you may field Avengers characters for free.
Transfer Power
Roll a character die from your used pile. If it rolls a character face, field it at no cost. Otherwise, place it in your bag.
Captain America - "Follow Me!"
When fielded, the next character you field this turn can be fielded for free.
Gambit - Le Diable Blanc
When fielded, draw and roll 2 dice. Field characters rolled on those dice for free; place the rest in your used pile.
* Instead draw 3 dice, choose two to roll and return the other to your bag.